CVE-2022-28371

Name: CVE-2022-28371
Creator: NVD / NIST
Published: 2022-07-14T13:15:08.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2022-28371 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 and OutDoorUnit (ODU) 3.33.101.0 devices, the CRTC and ODU RPC endpoints rely on a static certificate for access control. This certificate is embedded in the firmware, and is identical across the fleet of devices. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

On Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 and OutDoorUnit (ODU) 3.33.101.0 devices, the CRTC and ODU RPC endpoints rely on a static certificate for access control. This certificate is embedded in the firmware, and is identical across the fleet of devices. An attacker need only download this firmware and extract the private components of these certificates (from /etc/lighttpd.d/ca.pem and /etc/lighttpd.d/server.pem) to gain access. (The firmware download location is shown in a device's upgrade logs.)

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.49%

38.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Verizon	Lvskihp Indoorunit Firmware	3.4.66.162
Verizon	Lvskihp Outdoorunit Firmware	3.33.101.0

References

https://github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20Modem/readme.mdExploit, Third Party Advisory
https://www.verizon.com/info/reportsecurityvulnerability/Vendor Advisory
https://github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20Modem/readme.mdExploit, Third Party Advisory
https://www.verizon.com/info/reportsecurityvulnerability/Vendor Advisory

Timeline

Published: Jul 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-28371?

How severe is CVE-2022-28371?

CVE-2022-28371 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2022-28371?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-28371?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST